% Generated by roxygen2: do not edit by hand
% Please edit documentation in R/country_date.R
\name{is_vignette}
\alias{is_vignette}
\title{Vignette ratings}
\usage{
is_vignette(x, na.rm = T)
}
\arguments{
\item{x}{Character vector of country-dates}

\item{na.rm}{Whether to set \code{NA} values to false.}
}
\value{
Logical vector
}
\description{
Indicates whether a country-date represents a vignette.
}
\details{
Vignettes are identified by unique constructed from the
    vignette type, threshold, and version.  Note, we merge
    historical vignettes into contemporary when the question text
    hasn't changed --- which so far includes contemporary pilot
    vignettes only --- meaning that the raw data contained in a
    vignette row in a V-Dem country-date data matrix may not match
    directly to the raw data in our database.
}
\examples{
is_vignette(c("AFG 1900-01-01", "historical_1_v2", "pilot_1_v1"))

}
\seealso{
Other country-date functions: \code{\link{is_country_date}},
  \code{\link{sort_text_id}}
}
\concept{country-date functions}
